Journal of Convergence for Information Technology (융합정보논문지)

Convergence Society for SMB (중소기업융합학회)
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A Design of Small Size Sensor Data Acquisition and Transmission System

소형 센서 데이터 수집 및 전송 시스템 설계

  • Lim, Joong-Soo (Division of Information Communication, Baekseok University)
  • 임중수 (백석대학교 정보통신학부)
  • Received : 2018.11.30
  • Accepted : 2019.01.20
  • Published : 2019.01.28
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Abstract

In this paper, we describe the design of a small size data acquisition system with STM32 processor based on Cortex-M4. The system is used for the sensor devices to collect raw data on production lines at factory and send them to the server computer in real time. Also the system is designed to easily acquisite various kinds of data collected from various sensors with the digital signal input unit, the analog signal input unit, the digital signal output unit and the analog signal output unit This small data acquisition system will contribute to the improvement of the quality of precision products in the industrial field by collecting various data in real time and transmitting data at high speed.

본 논문은 Cortex-M4 기반 소형 데이터수집, 융합 및 고속 전송시스템 대해서 기술하였다. 본 논문에서 설계한 데이터 수집 및 전송 시스템은 산업현장에서 발생되는 각종 데이터를 실시간 수집하여 서버 컴퓨터로 직접 자료를 전송할 수 있으며 간단한 필드-프레임을 개발해서 데이터 전송 속도를 향상 시켰다. 또한 각종 센서에서 수집된 여러종류의 데이터를 데이터 수집장치로 쉽게 전달할 수 있도록 디지털 신호 입력부와 아나로그 신호 입력부, 디지털 신호 출력부와 아나로그 신호 출력부가 별도로 구성되도록 설계하였다. 이러한 소형 데이터수집 시스템은 실시간으로 각종 데이터의 수집 및 고속 데이터 전송이 실시되어 산업현장에서 정밀한 제품들의 품질향상에 크게 기여하리라 판단된다.

Keywords

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Fig. 1. Functional Diagram of New Designed Small Size DAQ System

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Fig. 2. Functional Diagram of old DAQ System

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Fig. 3. HW Block Diagram of New DAQ System

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Fig. 4. FT232H Connection with STM32F407

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Fig. 5. HOA1405 sensor

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Fig. 6. Picture of DAQ System Board

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Fig. 7. Software Structure of Small Size DAQ

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Fig. 8. Frame Fields of DAQ System

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Fig. 9. Task Configuration of DAQ System

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Fig. 10. Test of DAQ System

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Fig. 11. Test of 20Hz Triangular Signal

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Fig. 12. Test of 200Hz Triangular Signal

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Fig. 13. Test of 3KHz Triangular Signal

Table 1. Features of STM32F407 Processor

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